2 pts Experimenters in a rodent lab are investigating if chronic stress can impact the growth of one area of the brain called the hippocampus. During the first 14 days of their lives, half of the rats in this study are reared in a high stress condition while the remaining rats are reared in a low stress condition. At the end of their lives, the researchers then explore the size of the hippocampal structure in all of the rats. To analyze the effect of stress on hippocampal growth. these researchers should use the: O Paired samples t test O One-way between-subjects ANOVA O Repeated measures factorial ANOVA O Between-subjects factorial ANOVA O One-way repeated measures ANOVA O Mixed model factorial ANOVA O Independent samples t test